Osram unveils enhanced thin-film chip technology

Dec. 20, 2005
Osram Opto Semiconductors has revealed details and perforamnce data for its most advanced Thin Film chip technology.
Osram Opto Semiconductors has developed an advanced version of its thin-film LED chip technology which has already been incorporated into several advanced device-level products. In late November, Osram unveiled new Power TopLED packages available at two brightness levels and in a new range of colors. The orange Power TopLED, for example, is available in two versions with fluxes of 3 lm or 7 lm, at an operating current of 50 mA.

Osram subsequently announced a new addition to its Golden Dragon family of high-power packages, aimed specifically at automotive applications such as daytime running lights. The devices produce a typical luminous flux of 64 lm from an operating current of 500 mA, compared with 40 lm for the previous version, and have a forward voltage which has been reduced from 3.8 V to 3.2 V. The company says that an optimized package, combined with a special carrier material, ensures excellent heat dissipation.

The new products are based around Osram's thin-film chip technology, which has been in production since 2002. The company continues to make iterative improvements to the technology, which is applicable to both InGaN-based devices (which are known as Power ThinGaN) and AlGaInP-based devices.


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